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Chapter 21  Using External Functions and Other Processing Extensions</TITLE>
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<A NAME="CFHDAECE"></A><h1>Chapter 21  Using External Functions and Other Processing Extensions</h1>
<A NAME="TI3740"></A><h4>About this chapter</h4>
<A NAME="TI3741"></A><p>This chapter describes how to use external functions and other
processing extensions in PowerBuilder.</p>
<A NAME="TI3742"></A><h4>Contents</h4>
<A NAME="TI3743"></A><table cellspacing=0 cellpadding=6 border=1 frame="void" rules="all"><tr><th  rowspan="1"  ><A NAME="TI3744"></A>Topic</th>
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<tr><td  rowspan="1"  ><A NAME="TI3745"></A><A HREF="apptechp124.htm#X-REF299420549">Using external functions</A></td>
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<tr><td  rowspan="1"  ><A NAME="TI3746"></A><A HREF="apptechp125.htm#X-REF299420582">Using utility functions
to manage information</A></td>
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<tr><td  rowspan="1"  ><A NAME="TI3747"></A><A HREF="apptechp126.htm#X-REF369572790">Sending Windows messages</A></td>
</tr>
<tr><td  rowspan="1"  ><A NAME="TI3748"></A><A HREF="apptechp127.htm#X-REF299420569">The Message object</A></td>
</tr>
<tr><td  rowspan="1"  ><A NAME="TI3749"></A><A HREF="apptechp128.htm#CFHDGCJH">Context information </A></td>
</tr>
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